Raising the threshold crappiness

I love anything open late at night. Never mind ‘the sigh of midnight trains in empty stations’; even mundane activities like filling up with petrol become enjoyably Edward Hopperish after midnight. Often the places are so quiet you wonder why they bother opening at all.

But it is a strange psychological fact that opening a shop 24 hours a day often pays, even if nobody ever buys anything between 1 a.m.